Vacon 100 - Page 330

Fault
code
Fault ID Fault name Possible cause How to correct the fault
30 520 Safety diagnostics The STO inputs have a
different status.
Do a check of the external safety
switch. Do a check of the input
connection and cable of the safety
switch. Reset the drive and restart.
If the fault occurs again, ask
instructions from your nearest
distributor.
521 Safety diagnostics A malfunction in the ATEX
thermistor diagnostic. There
is no connection in the ATEX
thermistor input.
Reset the drive and restart. If the
fault occurs again, change the
option board.
522 Safety diagnostics A short-circuit in the
connection of the ATEX
thermistor input.
Do a check of the ATEX thermistor
input connection. Do a check of the
external ATEX connection. Do a
check of the external ATEX
thermistor.
523 Safety diagnostics A problem occured in the
internal safety circuit.
Reset the drive and restart. If the
fault occurs again, ask instructions
from your nearest distributor.
524 Safety diagnostics An overvoltage in the safety
option board
Reset the drive and restart. If the
fault occurs again, ask instructions
from your nearest distributor.
525 Safety diagnostics An undervoltage in the
safety option board
Reset the drive and restart. If the
fault occurs again, ask instructions
from your nearest distributor.
526 Safety diagnostics An internal malfunction in
the safety option board CPU
or in the memory handling
Reset the drive and restart. If the
fault occurs again, ask instructions
from your nearest distributor.
527 Safety diagnostics An internal malfunction in
the safety function
Reset the drive and restart. If the
fault occurs again, ask instructions
from your nearest distributor.
530 Safe torque off An emergency stop was
connected or some other
STO operation was
activated.
When the STO function is activated,
the drive is in safe state.
32 311 Fan cooling The fan speed does not
agree to the speed
reference accurately, but
the drive operates correctly.
This fault shows only in the
MR7 and in the drives that
bigger than MR7.
Reset the fault and restart the
drive. Clean or replace the fan.
312 Fan cooling The fan life time (that is,
50,000 h) is complete.
Replace the fan and reset the life
time counter of the fan.
VACON · 330 FAULT TRACING
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